Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Question about L92/LS3 topend on LQ4.

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Old 03-26-2010, 02:02 AM
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I'm going to run a Nick Williams 92mm tb. I found the SLP thottle cable bracket for the LS3/L76 intakes. So, I'm going to order that today. The map sensor thing is worrying me a little though. I've heard of problems running the LS3 map sensor with the LS1 computer. I emailed Steve Williams (Frost), to see if he'd be able to tune for the LS3 map sensor, to make sure it runs right, but haven't heard back from him yet. If not, I'll probably just pick up an LS1 sensor, and put the o-rings on it. I was just worried about it not really being held in by anything if I do that. Guess I should've bought an L76 intake, since the LS1 map would snap right in. I already got the LS3 rails and injectors with the intake. I'm going to try and use the injectors. But, if they end up being maxed out, I'll get some bigger ones.
Old 03-26-2010, 06:54 AM
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I ran an LS1 stlyle MAP in the LS3 intake(see pic) with just a little silicone.
Old 03-28-2010, 07:27 AM
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Im putting a new ls3 intake and NW92 on a stroker right now with ls1 computer and have this question regarding the MAP sensor as well. I believe it's a 2 bar sensor. Is it possible to alter the cals in Efilive to accomodate this ?

cheers

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Old 03-28-2010, 07:31 AM
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You need a MAP sensor extension, and a custom Operating system upgrage for 2 bar, I think its free to upgrade too.

My FAST 102 intake has front and rear MAP sensor locations, if your ever thinking of upgrading, it would save you the cost of the extension harness.
Old 03-29-2010, 10:48 PM
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Ok got it sorted I believe just change table C6301 in efilive to 128.1250 to change the Map scaler and the offset C6302 to 0.

cheers



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